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The Guide you are reading now is the easiest one you can ever use to update the firmware version of your Samsung SGH-T679 which is known as Samsung Exhibit II 4G from T-Mobile, Also we tried to bring all the needed tools, Files, And programs to one place so you can read the guide, Download and collect the tools, Then start the work, So no need to search for anything as all are here.

You should know that when you update your mobile phone firmware you will loose all the saved data on its internal memory, So it is a very important step to make a backup of anything you want to keep.